Modem Cellular Basics; Disabling Cellular Phone Recognition - Compaq Armada 7800 Reference Manual

Modem Cellular Basics

To place data (sending information) calls, you can connect the
modem to specific cellular phones with a cable. This makes the
modem function exactly as it would if you were placing the call
over a standard telephone line. For example, you can transfer
information when you are mobile and a standard RJ-11 telephone
jack is unavailable.
Since most modem software applications do not recognize that
you are sending data from a cellular connection, you must use AT
commands when transmitting or receiving data with a cellular
phone. You can access the AT command set through the online
Reference Guide. Use the Commands menu at the top of any
modem screen.

Disabling Cellular Phone Recognition

Use Windows HyperTerminal to enter command mode to
NOTE:
disable cellular phone recognition.
You can disable cellular phone recognition by using the $M0
command. This command causes the modem to skip the process of
detecting a cellular phone which occurs if $M1, $M2, or $M4 is
entered.
Using the Internal Modem 7-17